Machine fob mtakiiirg spikes



1. H. SWETT.

Spike Machine.

'Patented oct. 10, 1848.

' State of New Hampshire, have invented ar JAMES H. swnrr, oF voonoonn.'NEWrniMrsnIRE-- Y MACHINE Fon MAKING SPIRES.

spetistatitn of Letters Patent No'. 5,843, dated october 1o, 184s.

To all whom may concern.' j

B e it known that I, JAMES SwE'r'r, of Concord, in the countyv of llVlcrrimac and new and useful Improvement in the Machine for Making Spikes, which is described as follows, reference being had to the annexed drawings of the same, making part of this specification.

Figure l, is a side elevation of the machine. Fig. 2, is a vertical longitudinal section of the same. Fig. 3, is a top or birds eye view of ditto. Fig. 4i, is a perspective view of the heading plate. Fig. 5, is a perspective view of one of the dies of the upper roller. Fig. 6, is a perspective view of one of the dies of the lower. roller.A Fig. 7, is a side elevation of the headers, the circles upon which it moves being represented by dotted lines.

Similar letters in the several iigures refer to correspondingy parts..

A is the frame, made of cast iron of suicient size and strength to contain and support the several parts of the machine.

B, B', are drawing rollers, arranged one above the other and secured on horizontall shafts turning in adjustable boxes inserted in the frame. y

C are flanges on the peripheries of the rollers, for guiding the rod from which the spikes are formed, in its passage between them.

D are four cast steel diesLdovetailed in the periphery of t-he lower roller at equal distances apart, and projecting beyond the same in the form of a triangle.

, E are four other dies, dovetailed in the periphery of the upper rollerl at equal distances apart, and projecting from the kSame a similar distance to, those on the lower roller, and made to correspond with them in form, except that they havel an additional triangular lip Z, projecting from their radial sides, resting on the periphery of the roller.

F is a cog wheel on the shaft of the upper roller, meshing in gear with a similar cog wheel, on the shaft of the lower roller.`

Gr is a ratchet wheel secured on the shaft of the lower roller.

H is an arm turningv loosely on Said shaft outside they ratchet wheel-V.

I is a propelling pall attached to the arm- H at one end by a horizontal bolt, on which it moves.

J is a lever `or dog, also attached to the arm by said bolt, having aprojection or pin atl one end,;y which is pressed against the pall -by a spring s at its opposite end, for keeping said pall'against the .periphery ofthe ratchet wheel. f

J is an arm turning loosely on the shaft of the lower roller inside of the ratchet wheel, and secured to thearm H at its lower end, by a bolt.

Kiss a holding pawl' secured above the ratchet wheel, and resting on the top of the` same.

L is a segment connecting rod, that connects the end of the loose arm H on the axle of the lower roller,and ratchet wheel, and tofv which; the propelling pawl is -attached-and the lower extremity of a vibrating beamvM on the 'end of a horizontal shaft N, turning in suitableboxes inthe frame. .7'

O isthepropelling'gearingt Y P is a connecting rod that connects the upper end of the vibrating beam to a wrist w on the face of one of the propelling wheels. Y o

Q is a crank on the horizontal Shaft N, midway between the sides of the frame.

R is the header, being a crooked bar, bent so as to form obtuse angles near its vextremities as represented in Fig. 7 and connected at 011e end to the crank Q. v

S, T, are two adjustable arms for altering theposition ofthe headerv R;

U is a joint bolt for connecting t-he arms S, T, together.

V is a boltfor securing the arm S to the t frame.

`-W is a slot, in, the arm S, to admit of the aforesaid adjust-ment.

X isl apin orl bolt for connecting the header tothe arm T.

Y is. an additional hole in the arm: T,

into which the pin X is inserted when thev 1.00

position of the header is required to be chan-ged.

Z.y is the heading plate secured firmly to the frame immediately opposite the. drawrollers. This plate has a channel or' grooveI a formed in its upper surface to admit.y and guide the lheated rod, and hold itin its place duringV the operation of forming the head, and has a depression b on its.

edge of the form of a section of a wedge,

the inner side of said depression being i11- clined or sloped as represented in Figs. 2 and 3, in which the head of the spike is formed.

c is a cap plate, secured on the upper surface of the heading plate for preventing the heated rod from rising during its passage through the channel a, or during the operation of forming the head of the spike.

The operation of this machine is as follows,-Motion bein propelling wheels by band, or cogged gearing, leading from any convenient power, a vibratory motion is given to the crank Q,

shaft N, vibratingV beam M, and-arm H, by,

s Drino' doO J to alternatel enter the notches j 1 b D 7 y in the ratchet wheel, and, in its forward oscillating motion, to turn the rollers B B a quarter of a revolution and in its return motion toward the rear of the machine to slip over `the periphery of the ratchet wheel, until it enters the next succeeding notch, when its motion is again reversed and the rollersturned another quarter of a revolutionthe rollers being held and prevented from turning during the4 return motionof the oscillating arm and pall, by the holding pall K. The wrought iron rod from which the spikes are to be formed is introduced between the rollers, being previously heated to a red heat, and is forced by them through the channel a in the upper surface of the heading plate z until the cutting edge of one of the dies E, on t-he upper roller, and the cutting edge of one of the dies D, on the lower roller come together, (the dies on the upper and lower rollers being arranged in the proper relation to e-ach other to ensure this result) and cut the rod, and by their corresponding inclined surfaces sharpen the end of the part of the rod cut o, and by the inclined surface of the't-riangular lip Z of the upper die, cause a corresponding inclina- -tion on the end of the rod, as shown in Fig.

2, when the holding pall falls in one of the notches of the ratchet wheel and keeps the rollers in that position. The motion of the vibrating beam `M, loose arms H, J and crank Q, is then reversed, which causes the crooked bar, or' header R to be forced downward, and toward the heading plate; and its lower end (which is inclined in a counter direction to the inclination of the depression 'in the heading plate) to strike against 'the end of the part of the rod cut oftl by thedies, which projects over the depressions b, a

suiiicient distance to form the required size communicated to 'the "tion, during the operation of forming the head, by the cap plate o confining it in the channel a, in the heading plate-the flanges C, on the peripheries of the rollers, and the inclined surfaces of the dies, between which its end is confined. The motion of the sevyeral parts are then again reversed, so as to cause the header to recede from the heading plate, and the arm and propelling pall, in contact with the next succeeding notch on the ratchet wheel, to turn the rollers another Yquarter of a revolution and bring the rod forward to formanother spike, and at the same time discharge-the one already formed, from the machine.

I do not claim the drawing rollers B B,

nor the frame A, in whichthey are placed,

nor the cogged. gearing F, by which they are propelled, as these are made'like those gf ordinary rolling mills for rolling iron,

What I do claim as my invention and desire to secure by Letters Patent is* l. I-Ioldin the piece of iron to form the spike with ghe point against the dies D, E fastened in rolls while the head .is being turned and shaped at the same time by the header R upon the heading plates Z as described.

2. I claim the crooked header in combination with the arms T, Q, to `which it is atf tached, and the gearing O, I), for giving it the required movements, by which the spike is hook headed by one motion, as described.

3. I claim the combination and arrangement of the arms S, T, jointbolt U, bolt V, for adjusting the crooked header, as aforesaid.

4. I claim constructing the upper die with an additional triangular projection Z for shaping one side of the end of the piece of iron that is to form the spike so as to produce the proper slope, preparatory to its lbeing bent'down over the heading plate by the inclined end of the crooked header, as described. i

In testimony whereof I have hereunto signed my name beforetwo subscribing witnesses this iirst day of January 1848.

JAMES H. SWETT.

Witnesses:

WM. P. ELLIOT, LUND WASHINGTON, Senr. 

